Underwater observation periscope



U8 1, 1950 G. A. MccuLLoUGl-l 2,516,897

UNDERWATER OBSERVATION mrscopa Filed Harsh 13, 1947 ATTO R N EYB Patented Aug. 1, 1950 UNITED STATES PATENT OFFICE Gregory A. McCullough, Detroit, Mich., assignor to Fred Ninness, Detroit, Mich.

Application March 13, 1947, Serial No. 734,485

1 Claim. l

The present invention relates to an apparatus for viewing marine life and the bottoms of bodies of water and it consists in the combinations, constructions and arrangements of parts herein described and claimed.

The invention contemplates the provision of an elongated structure adapted to be partially immersed in water and having a hood for the operator at its upper end and provided at its lower end With a bottom window and a plurality of side windows together with mirrors whereby objects at the sides of the apparatus may be viewed simultaneously with objects directly beneath the observer.

It is accordingly an object of the present invention to provide a means for viewing objects beneath the surface of water not only directly beneath the observer but also to the sides of the observer.

A further object of the invention is the provision of a novel hood for the exclusion of light from the viewing side of the windows provided for in the apparatus.

A further object of the invention is to provide a device of the character set forth hereinabove which will be simple in construction and operation and which will be inexpensive to manufacture.

Other and further objects of the invention will become apparent from a reading of the following specification taken in conjunction with the drawings, in which:

Figure 1 is a vertical elevational View of an apparatus embodying the invention,

Figure 2 is an enlarged vertical sectional view of the device shown in Figure 1, and

Figure 3 is an enlarged sectional view taken along line 3--3 of Figure l.

Referring more particularly to the drawings, there is shown therein a hollow elongated rectangular casing IIJ having a hood I2 of textile material or the like afxed about the upper edge thereof and extending laterally to accommodate the body of the observer. The interior of the hood I2 is preferably blackened to absorb stray light beams which might otherwise interfere with the operation of the apparatus.

The lower end of the body is provided with an inwardly extending base providing a closure I 4 of generally square shape and having four angularly extending sides I6 having mirrors I8 ailixed thereon and a horizontally extending window 2U mounted in the central portion of the base. Windows 22 are provided in each side of the casing adjacent the mirrors i8.

In operation, it will be apparent that the casing of the apparatus is lowered into the water until the various Windows are immersed. The observer then places his upper portion of his body in the hood l2 until his head is approximately over the center of the casing. I-Ie may then view objects di :ectly below him through the window 20 and objects on any side of the shaft through the Windows 22 by means of the mirrors i8.

.While but one form of the invention has been shown and described herein, it will be readily apparent to those skilled in the art that many minor modifications may be made herein without departing from the spirit of the invention or the scopi; of the appended claim.

What is claimed is: In an instrument for observing under water, the combination which comprises an elongated vertically disposed rectangular shaped hollow tubillar casing, said casing having Windows with transparent closures therein in the side walls thereof, said openings spaced from the lower ends of the walls, a square block providing a base in the lower end of the casing, said block having a centrally disposed opening therethrough, a. transparent panel providing a closure in the said centrally disposed opening of the base, said block having a plurality of diagonally positioned surfaces on the inner face thereof with the said surfaces sloping upwardly from the periphery of the block to the edge thereof around the opening therethrough reflecting surfaces carried by the diagonally positioned surfaces on the inner face of the base, positioned around the said centrally disposed opening and aligned with the Windows in the walls of the casing whereby lines: of sight through the windows are reflected to the upper end of the casing, and a laterally extended hood on the upper end of the casing.

GREGORY A. MCCULLOUGH.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Germany May 17, 1930 

